Hey all - This may or may not be an issue but I noticed it as I was carrying my MacBook today. If you tilt the MacBook side to side, the keyboard makes a very slight movement noise. Its as if its falling into place and there's some wiggle room around the keys. Again, this may very well be normal and the noise is very very slight. I'm hearing it in my quiet office only when tilting it. The sound is more noticeable when tilting with the MacBook open. Let me know if anyone else hears it or knows about it Thanks!